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chapter 6
Conversions and Calculation
| Question | Answer |
|---|---|
| alligation | A mathmatical method of solving problems rhat involves the mixing of two solutions or two solids possesing different percentage weights to achieve a desired third strength |
| Apothecary system | A system of measurement once used in the practice of pharmacy to measure both volume and weight |
| Markup | Amount, usually a percentage, added to a wholesale price in order to make a profit |
| Conversion Factor | A fraction that is used for converting one unit to another without changing the value of the number |
| Dilutent | An inert product, either liquid or solid, that is added to a preparation to reduce the strength of the original produc |
| Drop Factor | The size of drops coming through the tubing; measured in gtt(drops)/mL |
| Dilution | The process of adding a Dilutent or solvent to a compound, resulting in a product of increased volume or weight and lower concentration |
| Drip Rate | The number of drops (gtt) administered over a specific time via an intravenous infusion, for example, gtt/min |
| International Time | 24-hour method of keeping time in which hours are not distinguished between AM and PM but are counted continuously throughout the entire day |
| Volume | Amount of liquid enclosed within a container |
| International System of Units | System of measurement based in seven base units with prefixes that change units by multiples of 10 that are taken from the French Système International |
| Flow Rate | Amount of IV solution administered over a period of time, for example, mL/min, mL/hr, gtt/min |
| Metric SystemMetric System | Approved system of measurement for pharmacy in the US based in multiples of 10 |
| Wholesale Cost | Purchase price of a product (in this case medicine), which is then marked up for resale. |
| Avoirdupois system | A system of measurement previously used in pharmacy for the determination of weight in ounces and pounds |
| Household System | System of measurement commonly used in the US; measures volumes using household utensils |
| 5ml | 1tsp |
| mL | milliter |
| l | liters |
| g | gram |
| m | meter |
| mcg | micrograms |
| kg | kilograms |
| 15mL | 1 tbsp |
| 30mL | 1 fl oz |
| 480mL | 1 pt |
| 3840mL | one gal |
| gtt | 1 drop |
| tsp | 1teaspoon |
| tbsp | 1 tablespoon |
| 60 | oneteaspoon |
| gal | 1 gallon |
| 4 quarts | 1 gallon |